New Hampshire-bred actress-comedian Sarah Silverman, who was out in New York over the weekend walking hand-in-hand with actor Michael Sheen, has donated her services to Keshet, a local nonprofit that advocates for gay, lesbian, bisexual, and transgender Jews. Those who attend the group’s Keshet Cabaret on March 27 will be able to bid on Silverman — her voice, at least. She says she’ll record a personal voicemail message for the biggest spender.